Stephen Salve Doliente

University of Bath | UB · Department of Mechanical Engineering

Microwave pyrolysis offers rapid and low-cost technology to upgrade agro-forestry residues to high-value products. I-optimal experimental design was used to determine the optimal combination of microwave power and exposure time to maximize biochar yield from corn cob. A validation experiment at optimal conditions of 600 W and 6.9 min produced an av...

Current consumption of palm oil accounts for one third of the growing world demand for vegetable oil. Amidst the burgeoning industry, huge ecological costs have been accrued within just three decades due to the rapid oil palm expansion in many parts of the world. Many oil palm plantations are linked to deforestation, biodiversity losses, land use c...

A current and fully-referenced dataset of resources and technologies for rice provision system is presented in this paper. These data served as model input data for the first multi-objective spatio-temporal optimisation of Philippine rice value chains. Data on available farmland area and their characteristics, such as paddy rice yield, rice farming...

Rice crops, which currently feed more than half of the world’s population, is crucial in global food systems. Creating more efficient and sustainable rice value chains can facilitate the realisation of United Nations’ Sustainable Development Goal of achieving zero hunger by 2050. Rice farming and milling suffer from interrelated techno-economic, po...

The undeniable environmental ramifications of continued dependence on oil-derived jet fuel have spurred international efforts in the aviation sector toward alternative solutions. Due to the limited options for decarbonization, the successful implementation of bio-aviation fuel is crucial in contributing to the roster of greenhouse gas emissions mit...

Humanity’s future sustainable supply of energy, fuels and materials is aiming towards renewable sources such as biomass. Several studies on biomass value chains (BVCs) have demonstrated the feasibility of biomass in replacing fossil fuels. However, many of the activities along the chain can disrupt the food–energy–water (FEW) nexus given that these...

In the long-run, microwave pyrolysis can be a simpler and low energy-requiring alternative to conventional pyrolysis for the thermochemical conversion of biomass to useful products. However, there are still research gaps in its mechanism. Thus, this study investigated the various factors affecting the biochar yield using a half resolution (2k-1) fa...

Rice, as a staple food in the Philippines, is the most farmed and stored seeds in the country. This study focused on the storage of rice seeds used for planting, and not for consumption. One of the major factors in seed storage is the moisture content, and according to Harrington's rule of thumb, if you decrease the seed moisture content by 1%, you...

In lieu of decarbonizing economies towards sustainability, pyrolysis is a well-known processing technology to convert biomass into useful fuels, chemicals and materials. Traditionally, pyrolysis is conducted in pressurized and complex reactor vessels with significant input of heat. Moreover, preprocessing requires the drying of biomass. To circumv...

Studies indicated that chitosan-based coating can prolong the shelf life of mango fruits. However, pure chitosan is relatively expensive raw material. Addition of a cheap filler in chitosan coating will reduce the cost of the treatment. This study dealt on developing a cost-effective chitosan-based coating by incorporating nanosilica derived from r...

Nanoparticle fluid suspensions or nanofluids are the next generation heat transfer fluids. They can be used to advance the development of ultrahigh performance and energy-efficient liquid cooling systems. However, their limited colloidal stability which can affect their performance and properties, remains a challenge. This study tested a greener io...

Colloidal suspensions of nanoparticles in host fluids, commonly known as nanofluids, are found to have enhanced thermal properties especially thermal conductivity. Because of this enhancement, nanofluids find most of their applications in intensifying the thermal management of several processes. One of the key issues with nanofluids is its stabilit...